Fill, 316th Security Support Squadron military working dog, practices sniffing odors prior to the Multi-Agency K-9 Explosive Training Event at Thomas A. Edison High School in Alexandria, Va., Apr. 6, 2022. Handlers train with their MWDs for at least 1,000 hours a year in order to stay current on training and deployment readiness. (U.S. Air Force photo by Senior Airman Spencer Slocum)